# Copyright (C) 2021 - 2025 ANSYS, Inc. and/or its affiliates.
# SPDX-License-Identifier: MIT
#
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

"""
End-to-end Fluent Solver Workflow using Watertight Meshing
-----------------------------------------------------------------------------
This test covers the setup and solution of a 3D
turbulent fluid flow and heat transfer problem in a mixing elbow. The mixing
elbow configuration is encountered in piping systems in power plants and
process industries. It is often important to predict the flow field and
temperature field in the area of the mixing region to properly design
the junction.

This test queries the following using PyTest:

- Meshing workflow tasks state before and after the task execution
- Report definitions check after solution
"""

from functools import partial

import pytest
from util.meshing_workflow import (
    assign_task_arguments,
    execute_task_with_pre_and_postcondition_checks,
)
from util.solver import check_report_definition_result


@pytest.mark.nightly
@pytest.mark.codegen_required
def test_mixing_elbow(
    watertight_workflow_session_wo_exit, mixing_elbow_geometry_filename
):
    meshing_session = watertight_workflow_session_wo_exit
    workflow = meshing_session.workflow

    assign_task_args = partial(
        assign_task_arguments, workflow=workflow, check_state=True
    )

    execute_task_with_pre_and_postconditions = partial(
        execute_task_with_pre_and_postcondition_checks, workflow=workflow
    )

    ###############################################################################
    # Import the CAD geometry
    # Query the task state before and after task execution
    assign_task_args(
        task_name="Import Geometry",
        FileName=mixing_elbow_geometry_filename,
        LengthUnit="in",
    )

    execute_task_with_pre_and_postconditions(task_name="Import Geometry")

    ###############################################################################
    # Add local sizing
    # Query the task state before and after task execution
    workflow.TaskObject["Add Local Sizing"].AddChildToTask()

    execute_task_with_pre_and_postconditions(task_name="Add Local Sizing")

    ###############################################################################
    # Generate the surface mesh
    # Query the task state before and after task execution
    assign_task_args(
        task_name="Generate the Surface Mesh",
        CFDSurfaceMeshControls={"MaxSize": 0.3},
    )

    execute_task_with_pre_and_postconditions(task_name="Generate the Surface Mesh")

    ###############################################################################
    # Describe the geometry
    # Query the task state before and after task execution
    describe_geo = workflow.TaskObject["Describe Geometry"]
    describe_geo.UpdateChildTasks(SetupTypeChanged=False)
    assign_task_args(
        task_name="Describe Geometry",
        SetupType="The geometry consists of only fluid regions with no voids",
    )
    describe_geo.UpdateChildTasks(SetupTypeChanged=True)

    execute_task_with_pre_and_postconditions(task_name="Describe Geometry")

    ###############################################################################
    # Update Boundaries Task
    # Query the task state before and after task execution
    assign_task_args(
        task_name="Update Boundaries",
        BoundaryLabelList=["wall-inlet"],
        BoundaryLabelTypeList=["wall"],
        OldBoundaryLabelList=["wall-inlet"],
        OldBoundaryLabelTypeList=["velocity-inlet"],
    )

    execute_task_with_pre_and_postconditions(task_name="Update Boundaries")

    ###############################################################################
    # Update your regions
    # Query the task state before and after task execution

    execute_task_with_pre_and_postconditions(task_name="Update Regions")

    ###############################################################################
    # Add Boundary Layers
    # Query the task state before and after task execution
    add_boundary_layers = workflow.TaskObject["Add Boundary Layers"]
    add_boundary_layers.AddChildToTask()
    add_boundary_layers.InsertCompoundChildTask()
    assign_task_args(
        task_name="smooth-transition_1", BLControlName="smooth-transition_1"
    )
    add_boundary_layers.Arguments = {}

    execute_task_with_pre_and_postconditions(task_name="Add Boundary Layers")

    ###############################################################################
    # Generate the volume mesh
    # Query the task state before and after task execution
    assign_task_args(
        task_name="Generate the Volume Mesh",
        VolumeFill="poly-hexcore",
        VolumeFillControls={"HexMaxCellLength": 0.3},
    )

    execute_task_with_pre_and_postconditions(task_name="Generate the Volume Mesh")

    ###############################################################################
    # Check the mesh in Meshing mode
    meshing_session.tui.mesh.check_mesh()

    ###############################################################################
    # Switch to Solution mode
    solver_session = meshing_session.switch_to_solver()

    ###############################################################################
    # Check the mesh in Solver mode
    solver_session.tui.mesh.check()

    ###############################################################################
    # Set the working units for the mesh
    define = solver_session.tui.define
    define.units("length", "in")

    ###############################################################################
    # Enable heat transfer by activating the energy equation.
    define.models.energy("yes", ", ", ", ", ", ", ", ")

    ###############################################################################
    # Create a new material called water-liquid.
    define.materials.copy("fluid", "water-liquid")

    ###############################################################################
    # Set up the cell zone conditions for the fluid zone (elbow-fluid). Select
    # water-liquid from the Material list.
    define.boundary_conditions.fluid(
        "elbow-fluid",
        "yes",
        "water-liquid",
        "no",
        "no",
        "no",
        "no",
        "0",
        "no",
        "0",
        "no",
        "0",
        "no",
        "0",
        "no",
        "0",
        "no",
        "1",
        "no",
        "no",
        "no",
        "no",
        "no",
    )

    ###############################################################################
    # Set up the boundary conditions
    velocity_inlet = define.boundary_conditions.set.velocity_inlet
    velocity_inlet("cold-inlet", [], "vmag", "no", 0.4, "quit")
    velocity_inlet("cold-inlet", [], "ke-spec", "no", "no", "no", "yes", "quit")
    velocity_inlet("cold-inlet", [], "turb-intensity", 5, "quit")
    velocity_inlet("cold-inlet", [], "turb-hydraulic-diam", 4, "quit")
    velocity_inlet("cold-inlet", [], "temperature", "no", 293.15, "quit")
    velocity_inlet("hot-inlet", [], "vmag", "no", 1.2, "quit")
    velocity_inlet("hot-inlet", [], "ke-spec", "no", "no", "no", "yes", "quit")
    velocity_inlet("hot-inlet", [], "turb-intensity", 5, "quit")
    velocity_inlet("hot-inlet", [], "turb-hydraulic-diam", 1, "quit")
    velocity_inlet("hot-inlet", [], "temperature", "no", 313.15, "quit")

    pressure_outlet = define.boundary_conditions.set.pressure_outlet
    pressure_outlet("outlet", [], "turb-intensity", 5, "quit")
    pressure_outlet("outlet", [], "turb-viscosity-ratio", 4, "quit")

    ###############################################################################
    # Enable the plotting of residuals during the calculation.
    solver_session.tui.solve.monitors.residual.plot("yes")

    ###############################################################################
    # Initialize the flow field using the Hybrid Initialization
    solver_session.tui.solve.initialize.hyb_initialization()

    ###############################################################################
    # Solve for 250 Iterations.
    solver_session.tui.solve.iterate(250)

    ###############################################################################
    # Assert the returned mass flow rate report definition value
    flux = solver_session.solution.report_definitions.flux
    flux["mass_flow_rate"] = {}
    flux["mass_flow_rate"].zone_names = [
        "cold-inlet",
        "hot-inlet",
        "outlet",
    ]

    check_report_definition = partial(
        check_report_definition_result,
        report_definitions=solver_session.solution.report_definitions,
    )

    check_report_definition(
        report_definition_name="mass_flow_rate",
        expected_result=pytest.approx(-2.985690364942784e-06, abs=1e-3),
    )

    ###############################################################################
    # Assert the returned temperature report definition value on the outlet surface
    solver_session.solution.report_definitions.surface["temperature_outlet"] = {}
    temp_outlet = solver_session.solution.report_definitions.surface[
        "temperature_outlet"
    ]
    temp_outlet.report_type = "surface-massavg"
    temp_outlet.field = "temperature"
    temp_outlet.surface_names = ["outlet"]

    check_report_definition(
        report_definition_name="temperature_outlet",
        expected_result=pytest.approx(296.229, rel=1e-3),
    )

    ###############################################################################
    solver_session.exit()
